2 lbs. ground beef
1 lg. onion, chopped
2 jars (28 oz. each) spaghetti sauce
1 (16 oz.) pkg spiral pasta, cooked and drained
4 c. (16 oz) shredded mozzarella cheese
8 oz. sliced pepperoni
In a large skillet, cook beef and onion until meat is no longer pink; drain. Stir in spaghetti sauce and pasta. Transfer to two greased 13X9 in baking dishes. Sprinkle with cheese. Arrange pepperoni over the top. Bake, uncovered, at 350 for 25-30 minutes or until heated through.
Can be frozen (before baking) for up to 3 months.